기후변화에 따른 둑높임 저수지의 용수공급능력 평가
Evaluating Water Supply Capacity of Embankment Raised Reservoir on Climate Change
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초록
An embankment raising project on 113 agricultural reservoirs in Korea was implemented in 2009 to increase water supply capacity for agricultural water and instream uses. This study evaluated the future water supply capacity of the Imgo reservoir at which the agricultural reservoir embankment raising project was completed, considering climate change scenarios. The height of the embankment of the reservoir was increased by 4.5 m, thereby increasing its total storage from 1,657.0 thousand to 3,179.5 thousand cubic meters. To simulate the reservoir water storage with respect to climate changes, two climate change scenarios, namely, RCP 4.5 and RCP 8.5 (in which greenhouse gas reduction policy was executed and not executed, respectively) were applied with bias correction for reflecting the climate characteristics of the target basin. The analysis result of the agricultural water supply capacity in the future, after the agricultural reservoir embankment raising project is implemented, revealed that the water supply reliability and the agricultural water supply increased, regardless of the climate change scenarios. By simulating the reservoir water storage considering the instream flow post completion of the embankment raising project, it was found that water shortage in the reservoir in the future is not likely to occur when it is supplied with an appropriate instream flow. The range of instream flow tends to decrease over time under RCP 8.5, in which the greenhouse gas reduction policy was not executed, and the restoration of reservoir storage was lower in this scenario than in RCP 4.5, in which greenhouse gas reduction policy was executed.
Abstract
An embankment raising project on 113 agricultural reservoirs in Korea was implemented in 2009 to increase water supply capacity for agricultural water and instream uses. This study evaluated the future water supply capacity of the Imgo reservoir at which the agricultural reservoir embankment raising project was completed, considering climate change scenarios. The height of the embankment of the reservoir was increased by 4.5 m, thereby increasing its total storage from 1,657.0 thousand to 3,179.5 thousand cubic meters. To simulate the reservoir water storage with respect to climate changes, two climate change scenarios, namely, RCP 4.5 and RCP 8.5 (in which greenhouse gas reduction policy was executed and not executed, respectively) were applied with bias correction for reflecting the climate characteristics of the target basin. The analysis result of the agricultural water supply capacity in the future, after the agricultural reservoir embankment raising project is implemented, revealed that the water supply reliability and the agricultural water supply increased, regardless of the climate change scenarios. By simulating the reservoir water storage considering the instream flow post completion of the embankment raising project, it was found that water shortage in the reservoir in the future is not likely to occur when it is supplied with an appropriate instream flow. The range of instream flow tends to decrease over time under RCP 8.5, in which the greenhouse gas reduction policy was not executed, and the restoration of reservoir storage was lower in this scenario than in RCP 4.5, in which greenhouse gas reduction policy was executed.
참고문헌 (29)
- Crop evapotranspiration: Guidelines for computing crop water requirements, "Allen, R. G.", FAO, ~, pp.FAO irrigation and drainage paper 56 (1998)
- 정건희, "기후변화를 고려한 한강유역 저수지의 적응능력 평가", 대한토목학회 논문집B, 31(5), pp.439~447 (2011), 대한토목학회
- Fujihara, Y., "Assessing the impacts of climate change on the water resources of the Seyhan River basin in Turkey: use of dynamically downscaled data for hydrologic simulations", Journal of Hydrology, 353(1), pp.33~48 (2008)
- Gohari, A., "Adaptation of surface water supply to climate change in Central Iran", Journal of Water and Climate Change, 5(3), pp.391~407 (2014)
- Hargreaves, G. H., "Reference crop evapotranspiration from temperature", American Society of Agricultural and Biological Engineers, 1(2), pp.96~99 (1985)
- 황순호, "황룡강 유역 저수지군 하류하천 영향평가", 한국농공학회논문집, 54(3), pp.103~111 (2012), 한국농공학회[DOI]
- 김지원, "기후변화 시나리오에 의한 용담 및 대청댐의 용수공급능력 평가", 석사, 토목공학과, pp.2012
- Kim, H. D., "Analysis of operation plan by multipurpose supply for heightened agricultural reservoir", KCID Journal, 19(1), pp.77~86 (2012)
- Abnormal climate report in 2011, "Korea Interagency Cooperation", Korea Meteorological Administration, 90~91 (2011)
- Abnormal climate report in 2012, "Korea Interagency Cooperation", Korea Meteorological Administration, 55~56 (2012)
- Abnormal climate report in 2013, "Korea Interagency Cooperation", Korea Meteorological Administration, 47~48 (2013)
- 이광야, "농업용수 수요량 산정 시스템 개발", 박사, 농공학, pp.2000
- 이재남, "이수관리곡선에 의한 증고저수지의 하천유지유량 공급 가능성 평가", Korean Journal of Agricultural Science, 37(3), pp.481~490 (2010), 농업과학연구소
- Lee, J. Y., "Water balance forecast of irrigation reservoir to future climate change", 박사, pp.2012
- "Thirsty Soyanggang dam:Two thirds of the water has dried up"[URL]
- Lee, T. H., "The study of water supply reliability considering the management for restricted water level of agricultural reservoirs during flood period", 석사, pp.2012
- 이관재, "농업용 저수지 증고에 따른 홍수조절효과 분석", 한국농공학회논문집, 55(4), pp.83~93 (2013), 한국농공학회
- Lenderink, G., "Estimates of future discharges of the river Rhine using two scenario methodologies: direct versus delta approach", Hydrology and Earth System Sciences, 11(3), pp.1145~1159 (2007)
- A study on the water requirement variation with the farming conditions in the paddy field, "Ministry for Food, Agriculture, Forestry and Fisheries", ~ (1997)
- Long-term water resources comprehensive plan(2011-2020), "Ministry of Land, Infrastructure and Transport", MOLIT, ~ (2011)
- Noh, J. K., "Affecting water supply capacity followed by allocating flood control volume in heightening reservoir", KCID journal, 17(2), pp.57~70 (2010)
- Securing stream water by considering water uses with software technology(Ⅱ), "Noh, J. K.", K-water Institute, ~ (2013)
- 노재경, "저수지 운영을 위한 한국 하천 유출 모형의 비교", Korean Journal of Agricultural Science, 38(3), pp.513~524 (2011), 농업과학연구소
- Oh, S. T., "Smart water management technology for optimal estimation of water supply", KCID magazine, 53, pp.60~66 (2014)
- 박근애, "미래 기후변화가 농업수자원에 미치는 영향 연구", 박사, 지역건설환경공학, pp.2008
- 박종윤, "농업용 둑높임저수지의 다중 용수공급을 위한 이수운영기준곡선 개발", 대한토목학회논문집(국문), 33(4), pp.1389~1400 (2013), 대한토목학회[DOI]
- Payne, J. T., "Mitigating the effects of climate change on the water resources of the Columbia River basin", Climatic Change, 62(1-3), pp.233~256 (2004)
- Schmidli, J., "Downscaling from GCM precipitation: a benchmark for dynamical and statistical downscaling methods", International journal of climatology, 26(5), pp.679~689 (2006)
- So, B. J., "Projection and assessment of next generation climate change scena", Water for Future, 45(8), pp.56~70 (2012)